<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="css/basic.css">
</head>
<body>
  <form action="/doLogin" method="post">
    用户名：<input type="text" name="username"/>
    <br/>
    密码：<input type="password" name="password"/>
    <br/><button class="btn btn-primary btn-lg" type="submit">提交</button>
  </form>
</body>
</html>
